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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*-
27: * Copyright (c) 1991, 1993
28: * The Regents of the University of California. All rights reserved.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)if_slvar.h 8.4 (Berkeley) 1/9/95
59: *
60: * @(#)if_slvar.h 8.3 (Berkeley) 2/1/94
61: */
62:
63: /*
64: * Definitions for SLIP interface data structures
65: *
66: * (This exists so programs like slstats can get at the definition
67: * of sl_softc.)
68: */
69: struct sl_softc {
70: struct ifnet sc_if; /* network-visible interface */
71: struct ifqueue sc_fastq; /* interactive output queue */
72: struct tty *sc_ttyp; /* pointer to tty structure */
73: u_char *sc_mp; /* pointer to next available buf char */
74: u_char *sc_ep; /* pointer to last available buf char */
75: u_char *sc_buf; /* input buffer */
76: u_int sc_flags; /* see below */
77: u_int sc_escape; /* =1 if last char input was FRAME_ESCAPE */
78: long sc_lasttime; /* last time a char arrived */
79: long sc_abortcount; /* number of abort esacpe chars */
80: long sc_starttime; /* time of first abort in window */
81: long sc_oqlen; /* previous output queue size */
82: long sc_otimeout; /* number of times output's stalled */
83: int sc_oldbufsize; /* previous output buffer size */
84: int sc_oldbufquot; /* previous output buffer quoting */
85: #if INET /* XXX */
86: struct slcompress sc_comp; /* tcp compression data */
87: #endif
88: caddr_t sc_bpf; /* BPF data */
89: };
90:
91: /* internal flags */
92: #define SC_ERROR 0x0001 /* had an input error */
93:
94: /* visible flags */
95: #define SC_COMPRESS IFF_LINK0 /* compress TCP traffic */
96: #define SC_NOICMP IFF_LINK1 /* supress ICMP traffic */
97: #define SC_AUTOCOMP IFF_LINK2 /* auto-enable TCP compression */
98:
99: #ifdef _KERNEL
100: void slattach __P((void));
101: void slclose __P((struct tty *));
102: void slinput __P((int, struct tty *));
103: int slioctl __P((struct ifnet *, u_long, caddr_t));
104: int slopen __P((dev_t, struct tty *));
105: int sloutput __P((struct ifnet *,
106: struct mbuf *, struct sockaddr *, struct rtentry *));
107: void slstart __P((struct tty *));
108: int sltioctl __P((struct tty *, u_long, caddr_t, int));
109: #endif /* _KERNEL */
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